diff --git a/pom.xml b/pom.xml
index d01334bd..b579a060 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
     <ramlfiles_path>${basedir}/ramls</ramlfiles_path>
     <okapi.version>2.22.0</okapi.version>
     <rmb.version>23.2.1</rmb.version>
-    <vertx.version>3.6.0</vertx.version>
+    <vertx.version>3.5.4</vertx.version>
     <rest-assured.version>3.2.0</rest-assured.version>
     <junit.version>4.12</junit.version>
   </properties>